How to reproduce it :
- you have to have a workspace configured with documents
- The user used to test have to have the rights to the workspace and to the current site
- add a search engin service into a page with follow parameters :
- Search by content type : all
- Choice of type : Using a filter on results
- multisite checked
- Expand the search to workspaces checked
- Display results on this page, under search criteria
- Launch a search that you are sure that only documents of the workspace whould be returned
> There is results but the pagination display that : Results 1 to 1 of 0
and the number of results is 0.